Emergency Ground Water Development Project (Akaki)
Contract No. I: Civil Works
Project Overview
Client: Addis Ababa Water and Sewerage Authority (AAWSA)
Consultant: Water Supply and Sewerage Agency (WSSA)
Sub-Consultant: Metaferia Consulting Engineers (MCE)
Date: December 1994
Project Components
| Bill No. | Description | Pages |
|---|---|---|
| 11 | EGWD - General Items | 2 |
| 12 | Well Field Area D: Collector & Transfer | 22 |
| 13 | CT (Collecting Tank) | 47 |
| 14 | GW1 (Ground Water 1) | 39 |
| 15 | GW2 (Ground Water 2) | 39 |
| 16 | GW3 (Ground Water 3) | 38 |
| 17 | GW4 (Ground Water 4) | 15 |
| 18 | Transmission Pipe Line | 19 |
| 19 | Distribution System (S2) | 11 |
Key Components Details
Well Field Area D (Bill No. 12)
- Access Road construction
- Construction of 13 Well Heads
- Collection and Transfer Pipe laying
- Generator house for SS1, SS2 & SS3
Collecting Tank (CT - Bill No. 13)
- 1000 m³ capacity collecting tank
- Pump House
- Operator Building & Chlorine Cylinder Shed
- Generator House
- Operator's Dwelling
- Guard House
- Drainage and Foul Water Disposal System
- Road, Parking and Storage Areas, Fence and Gate
- Collection Tank Site Electrification
Reservoirs (GW1-GW4)
- GW1: 1000 m³ capacity
- GW2: 2500 m³ capacity
- GW3: 2500 m³ capacity
- GW4: 2500 m³ capacity
- Each includes pump houses, generator houses, operator dwellings, guard houses, and associated infrastructure
Transmission Pipeline (Bill No. 18)
- Portion I: CT – GW1
- Portion II: GW1 – GW2
- Portion III: GW2 – GW3
- Portion IV: GW3 – GW4
Distribution System (Bill No. 19)
- Distribution pipe laying
General Items (Bill No. 11)
- Mobilization and demobilization
- Testing laboratory equipment and services
- Construction signs
- Survey control and setting out
- As-built drawings
- Operation and maintenance manuals
- Insurance for owner-supplied materials
- Geotechnical investigations
- Independent testing services
- Store for owner-supplied materials
- Engineer's office and facilities
Construction Specifications
The document provides detailed specifications for:
- Earthworks and excavations
- Concrete works (various grades and applications)
- Pipe laying (various diameters and materials)
- Structural steel works
- Electrical installations
- Plumbing and sanitary works
- Road construction
- Fencing and gates
Each item includes detailed quantities, unit measurements, and specifications for materials and workmanship.